CN1187732C - Surface assembling tpe electromagnetic sound-producing device - Google Patents
Surface assembling tpe electromagnetic sound-producing device Download PDFInfo
- Publication number
- CN1187732C CN1187732C CNB991024702A CN99102470A CN1187732C CN 1187732 C CN1187732 C CN 1187732C CN B991024702 A CNB991024702 A CN B991024702A CN 99102470 A CN99102470 A CN 99102470A CN 1187732 C CN1187732 C CN 1187732C
- Authority
- CN
- China
- Prior art keywords
- box
- sound
- leak
- producing device
- transmission aperture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
A surface-mounted electromagnetic sound generating body comprises: a casing of an almost rectangular parallelepiped incorporating a sound generating unit; a sound release hole formed in a vertical wall of the casing; and a sound leakage prevention member attached to the vertical wall formed with the sound release hole; wherein the sound leakage prevention member is almost equal in shape to the surface of the vertical wall formed with the sound release hole and has an opening coaxial with the sound release hole. As a result, the sound leakage prevention member and the casing are combined together as one compact piece, contributing to a reduced size and an improved effect of the sound leakage prevention.
Description
Technical field
The present invention relates in a kind of mobile communication equipment that is assembled into mobile (portable type) phone and pager etc., when receiving, the surface assembling tpe electromagnetic sound-producing device of generation receipt of call sound etc., particularly, the slim surface assembling tpe electromagnetic sound-producing device of the assembling of the upper surfaces such as printed circuit board in mobile communication equipment.
Background technology
In the past, well-known, as this surface assembling tpe electromagnetic sound-producing device 1,, be in the square box 2 that resin is made for example as shown in Figure 1, the interior partly sounding body of the slim formula of (scheming not shown) of vibration sounding of having adorned.This surface assembling tpe electromagnetic sound-producing device 1, as shown in Figure 2, be the top of printed circuit board 4 surface-mounted state under, be assembled in the housing 3 of mobile phone and so on.The front of box 2 offers sound transmission aperture 5, and this sound transmission aperture 5 is involutory with the perforate 6 on the part of being located at housing 3, and by surface-mounted printed circuit board 4 tops of arriving.And, in order to prevent to be stuck in the housing 3, so the gap between the perforate 6 of sound transmission aperture 5 and housing 3 disposes the seal 7 that anti-leak-stopping sound is used from the receipt of call sound that the sound transmission aperture 5 of surface assembling tpe electromagnetic sound-producing device 1 spreads out of.On sealing part 7, as shown in the figure, whole box 2 the recess 7a that embeds and the through hole 7b that is communicated with sound transmission aperture 5 and perforate 6 of surface assembling tpe electromagnetic sound-producing device 1 have been formed, and after surface assembling tpe electromagnetic sound-producing device 1 is assembled to printed circuit board 4 tops, above box 2, it is wrapped.In addition, in the inboard of the perforate 6 of housing 3, in housing 3, paste and be used to the dustcloth 8 that prevents that dust or dust, water droplet or moisture etc. from invading.And, constitute front with described seal 7, be crimped under the state on this dustcloth 8, in the housing 3 of packing into.And Fig. 3 and Fig. 4 are the figure of another prior art example of expression seal 9.In sealing part 9, except that having formed the recess 9a that encases half part in box 2 front sides and the through hole 9b that is communicated with sound transmission aperture 5 and perforate 6, around the recess 9a of through hole 9b one side, having disposed two sides band 10.And, when the assembling of mobile phone etc., can be pasted on by the ground paper of peeling off above-mentioned two sides band 10 sound transmission aperture 5 around, seal 9 is fixed on the box 2.
But, surface assembling tpe electromagnetic sound-producing device 1 with regard to above-mentioned prior art, the first and second prior art examples no matter, all supply with surface assembling tpe electromagnetic sound-producing device 1 and seal 7 or 9 with another body, so when the assembling of mobile phone etc., must use another operation, seal 7 or 9 is installed to box 2 tops of having adorned surface assembling tpe electromagnetic sound-producing device 1 on the printed circuit board 4.
And, because seal 7 or 9 has constituted as the lid that covers whole box 2 or front side half one, become big so exist the dedicated volume of surface assembling tpe electromagnetic sound-producing device 1 shared on this part printed circuit board 4, the problem that may occur when carrying other part restricting and so on.
Summary of the invention
First purpose of the present invention provides a kind of surface assembling tpe electromagnetic sound-producing device that can reduce the process number of assembling procedures such as mobile phone.
Second purpose of the present invention be, when making mobile phone etc., and the dedicated volume of dwindling surface assembling tpe electromagnetic sound-producing device shared on the printed circuit board as far as possible.
In order to solve above-mentioned problem, a kind of surface assembling tpe electromagnetic sound-producing device according to the present invention, it is by the be fixed together slim box of the roughly square shape that forms of last box and following box, the audible segment of in this slim box, adorning, the sound transmission aperture of on one of longitudinal wall that forms slim box side face, offering, constitute with the anti-leak-stopping sound member of installing previously at the longitudinal wall that is provided with this sound transmission aperture, above-mentioned anti-leak-stopping sound member has and the roughly the same shaped aperture part of sound transmission aperture, it is characterized in that comprising: the left and right sides of the sound transmission aperture of on above-mentioned slim box, offering, it is described that to go up be provided with on box and at least one side of following box a pair of be zygostyle; Be used for this be zygostyle chimeric and described anti-leak-stopping sound member medial surface outstanding form hitch projection; Hitching what be provided with on the projection at this is to close the hole, when fixing described last box becomes slim box with following box-like, described be zygostyle chimeric advance described anti-leak-stopping sound member what hitch projection is to close in the hole, and between last box and following box, seize the projection that hitches of described anti-leak-stopping sound member on both sides by the arms,, around sound transmission aperture, fix and prevent leak-stopping sound member when going up box and become slim box with fixing with following box-like.
If adopt such structure, then when the assembling surface assembling tpe electromagnetic sound-producing device, on every side carry out ultrasonic soldering owing to will prevent the sound transmission aperture that leak-stopping sound member is embedded into box, so can be fixedly installed to anti-leak-stopping sound member on the box really.
And, owing to around the sound transmission aperture that is opened on the box of surface assembling tpe electromagnetic sound-producing device, be provided with anti-leak-stopping line branch in advance, so when the assembling of mobile phone etc., do not need the installation procedure of the anti-leak-stopping sound member that carried out, can reduce its part assembling procedure number in the past.
And, with regard to the present invention, cover cassette body without seal, prevent leak-stopping line branch and only around the box sound transmission aperture, be provided with, so make the dedicated volume of surface assembling tpe electromagnetic sound-producing device shared on the printed circuit board also little, have the effect that is restricted when minimizing is carried other part on this part printed circuit board.
And above-mentioned anti-leak-stopping sound member is because sound transmission aperture is roughly the same with the box longitudinal wall shape of having opened mouth, and with the same axle of sound transmission aperture on opening portion is arranged, so when guaranteeing stable the installation, obtain the associative perception with box, and further bring into play transaudient effect for box.
And, if adopt the present invention, the part of above-mentioned anti-leak-stopping sound member is held under the arm between the last box and following box that constitutes box, need only under this state bonding on box and following box, just can integrally fix and prevent leak-stopping sound member.
And being provided with on above-mentioned anti-leak-stopping sound member is to close the hole, by being to close the stylolitic part that the hole embeds at least one side who is located at box and following box with this, and firm with it installation, and can not come off, have the effect that can prevent leak-stopping sound really.
And, because with silicone rubber or other thermotolerance rubber or resin, form above-mentioned anti-leak-stopping sound member, so expose to the open air at high temperature even it is led in the backflow heating furnace, can not make anti-leak-stopping sound member become bad yet, have the effect that can forever keep anti-leak-stopping audio fruit for a long time.
Also have, when surface assembling tpe electromagnetic sound-producing device assemble, paste under the occasion of dustcloth in the front of anti-leak-stopping sound member in advance, have and to cut down the effect that is used for dustcloth is pasted the process number inside the housing of mobile phone etc.
Above-mentioned such the features and advantages of the present invention with reference to accompanying drawing, below will describe in more detail.
Description of drawings
Fig. 1 illustrates the oblique view of seal one example that is overlying on existing surface assembling tpe electromagnetic sound-producing device surface.
Fig. 2 illustrates pack into the state profile of mobile phone etc. of the surface assembling tpe electromagnetic sound-producing device that has covered above-mentioned existing seal.
Fig. 3 illustrates another the routine oblique view of seal that is overlying on existing surface assembling tpe electromagnetic sound-producing device surface.
Fig. 4 illustrates pack into the state profile of mobile phone etc. of the surface assembling tpe electromagnetic sound-producing device that is shown in the above-mentioned conventional example of Fig. 3.
Fig. 5 illustrates the seal of the 1st embodiment of surface assembling tpe electromagnetic sound-producing device of the present invention preceding oblique view is installed.
Fig. 6 is the surface assembling tpe electromagnetic sound-producing device oblique view when in the above-described embodiments seal being installed.
Fig. 7 carries out otch to the part of the surface assembling tpe electromagnetic sound-producing device box of the foregoing description, and the part that combined structure between this housing and the seal is shown is cut planimetric map open.
Fig. 8 illustrates the sectional view at A-A line place of in-built Fig. 7 of surface assembling tpe electromagnetic sound-producing device of the foregoing description.
Fig. 9 is an outboard profile of cutting a part along the B-B line of in-built Fig. 7 of surface assembling tpe electromagnetic sound-producing device that the foregoing description is shown in part open.
Figure 10 illustrates the state profile of the mobile phone of surface assembling tpe electromagnetic sound-producing device of the foregoing description being packed into etc.
Figure 11 is and the same planimetric map of Fig. 7 that shows surface assembling tpe electromagnetic sound-producing device the 2nd embodiment of the present invention.
Embodiment
Below, with reference to the accompanying drawings, the embodiment of surface assembling tpe electromagnetic sound-producing device of the present invention is elaborated.Fig. 5 is the figure of the surface assembling tpe electromagnetic sound-producing device 11 of relevant the present invention the 1st embodiment of expression until Figure 10.Among these figure, Fig. 5 illustrates the oblique view of seal before installation of surface assembling tpe electromagnetic sound-producing device the 1st embodiment of the present invention, and Fig. 6 is the oblique view of the surface assembling tpe electromagnetic sound-producing device when seal has been installed in the above-described embodiments.And Fig. 7 carries out otch to the part of the surface assembling tpe electromagnetic sound-producing device box of the foregoing description, and the part that combined structure between this housing and the seal is shown is cut planimetric map open.Fig. 8 is the sectional view at the A-A line of in-built Fig. 7 of surface assembling tpe electromagnetic sound-producing device that the foregoing description is shown, and Fig. 9 is an outboard profile of cutting a part along the B-B line of in-built Fig. 7 of surface assembling tpe electromagnetic sound-producing device that the foregoing description is shown in part open.Figure 10 illustrates the state profile of the mobile phone of surface assembling tpe electromagnetic sound-producing device of the foregoing description being packed into etc.
In Fig. 5 and Fig. 6, this surface assembling tpe electromagnetic sound-producing device 11 is that vibration sounding part 18 (with reference to Fig. 8) is enclosed in the roughly sounding body of slim box 12 inside of square shape.Last box 12a and following box 12b that box 12 is made by resin constitute, and around each box 12a, the 12b up and down, have formed bonding both longitudinal wall 13a, the 13b of usefulness ultrasonic bonding.And, as shown in Figure 5, on the front of box 12 sidewall 14, offering the OBL sound transmission aperture 15 of growing crosswise, can transmit the receipt of call sound that sends by vibration sounding part 18 to the outside.This sound transmission aperture 15 is in order to improve transaudient efficient, the upside of the weld bond L2 of the centre line L 1 of sound transmission aperture 15 between last box 12a and following box 12b.And near the both sides of this sound transmission aperture 15, the stylolitic part 16a, the 16b that are formed by the part of the longitudinal wall 13a of last box 12a extend downwards.In addition, as shown in Figure 7, be provided with electrode terminal 17 in the bight everywhere of following box 12b.
On the front side wall 14 of the box 12 that constitutes by said structure, the seal 20 as anti-leak-stopping sound member is installed.This seal 20, be shaped with silicone rubber with flexibility, as shown in Figure 5, constitute by making with outstanding hitch sheet 22a, the 22b of the body part 21 of the bulk of the front side wall 14 same shapes of box 12 and these body part 21 trailing flanks of a subtend as hitching part.On body part 21, connect to form substantially the opening portion 23 of and identical size identical shaped with above-mentioned sound transmission aperture 15 along fore-and-aft direction, also respectively hitching on sheet 22a, the 22b, connecting what formed stylolitic part 16a, the 16b that can embed the above-mentioned box 12a of going up along the vertical direction is to close hole 24a, 24b.
Secondly, the assembling sequence of above-mentioned box 12 and the erection sequence of seal 20 are described.At first, when assembled cartridge 12, is what formed on sheet 22a, the 22b hitching of seal 20 stylolitic part 16a, the 16b top of closing box 12a in hole 24a, the 24b embedding, under this state, make box 12a and the interior following box 12b position of having adorned vibration sounding part 18 involutory, and make longitudinal wall 13a, 13b around box 12a, the 12b up and down involutory mutually.Seal 20 becomes the state of being held under the arm between last box 12a and the following box 12b.Then, by along weld bond L2, connect longitudinal wall 13a, 13b between box 12a and the following box 12b with supersonic welding, bonding both become an integral body, simultaneously seal 20 firmly are installed on front side wall 14 1 sides of sound transmission aperture 15.At this moment, the opening portion 23 of seal 20, be in the same axle of the sound transmission aperture 15 of box 12 on the state that roughly overlaps.
Like this, when last box 12a is shaped, only by being seal 20 to close hole 24a, 24b to embed simple approach on whole stylolitic part 16a, the 16b that is provided with, just can firmly be installed on seal 20 on the box 12, and as long as last box 12a and following box 12b are carried out ultrasonic soldering, also, can prevent coming off of seal 20 really with regard to energy while fixing seals 20.And, because seal 20 is formed the roughly the same size of front side wall 14 shapes with box 12, so obtained associative perception with box 12.Particularly, this seal 20 is very little flexibility again, though because of there is opening portion 23 to be difficult to operation in central authorities, owing to formed and above-mentioned front side wall 14 roughly the same shapes, so operation becomes easily during except that installation, also can adopt the installation method of automatic assembling seal 20.
Adopt above-mentioned such box 12 assembling ways, and the surface assembling tpe electromagnetic sound-producing device 11 that constitutes, as shown in figure 10, under the surface-mounted state on printed circuit board 30, be configured in the housing 31 of mobile phone etc., but when the assembling of surface assembling tpe electromagnetic sound-producing device 11, owing to paste the roughly dustcloth 33 of same shape in the front of seal 20 in advance, so can cut down the process number that dustcloth 33 is pasted above-mentioned housing 31 the insides.During assembling, above-mentioned electrode terminal 17 usefulness are reflow soldered on the established pattern electrodes on the printed circuit board 30 (scheming not shown).At this moment, seal 20 also passes through reflow ovens together, because silicone rubber is stable on heating, and the deterioration that produces so can not Yin Gaore take place.
Above-mentioned surface assembling tpe electromagnetic sound-producing device 11, perforate 32 subtends that are configured to sound transmission aperture 15 that makes box 12 and the housing 31 of being located at mobile phone etc. cooperate, and, be crimped onto on the medial surface around this perforate 32 by the dustcloth 33 that will be pasted on above-mentioned seal 20 fronts and fix.
Therefore, in the present embodiment, because so that the state of the seal 20 that anti-leak-stopping sound uses to be installed in advance, supply on the box 12 of surface assembling tpe electromagnetic sound-producing device 11, so in the time of in mobile phone that surface assembling tpe electromagnetic sound-producing device 11 is packed into etc., surface assembling tpe electromagnetic sound-producing device 11 is placed in printed circuit board 30 tops, only pass through reflow ovens, the surface assembling tpe electromagnetic sound-producing device of just finishing seal 20 is housed 11 carries out surface-mounted, and with existing the same, after surface-mounted surface assembling tpe electromagnetic sound-producing device 11, just become and saved the operation that is used to install seal 20.And, with present the same, because of seal 20 is not to cover whole box 12, so the dedicated volume of shared surface assembling tpe electromagnetic sound-producing device 11 is also little on printed circuit board 30.
Figure 11 is the planimetric map of surface assembling tpe electromagnetic sound-producing device the 2nd embodiment of the present invention.In the present embodiment, on the whole the inside or a part of the body part 21 of seal 20, pasted double-sided adhesive tape 28, on the front side wall 14 that makes it to be bonded in box 12, owing to be to use the structure formation roughly the same, describe in detail so enclose identical label and be omitted with above-mentioned the 1st embodiment.In addition, also can be fixed to the whole the inside of the body part 21 of seal 20 or a part on the front side wall 14 of box 12 with bonding agent, and need not above-mentioned double-sided adhesive tape 28.Seal 20 in the present embodiment except that closing with the last box 12a system of box 12, gets on because whole the insides of seal 20 all are adhered to whole front side wall 14, so obtain more certain fixing.In the present embodiment, also can before printed circuit board 30 tops, be installed in advance on the box 12, and under such state, pass through reflow ovens surface-mounted.Dustcloth 33 can also be pasted the front of seal 20.
In addition, in the above-described embodiments, although understand the relevant situation that has formed seal 20 with silicone rubber, but in the present invention, except that silicone rubber, also can use fluororubber, perhaps the elastomeric material of the excellent heat resistance of acrylic rubber and so on or resin material.Also have, in the above-described embodiments, although understand the relevant situation that stylolitic part 16a, 16b are set on box 12a on the box 12, but self-evident, also can be located at down box 12b or up and down on box 12a, the 12b on both sides.And, in the above-described embodiments,, be arranged at down the situation in the bight everywhere of box 12b, but be not limited to everywhere although understand relevant electrode terminal 17 that is used for Reflow Soldering on printed circuit board 30, can certainly be located at above many places, at least two places.
Claims (1)
1, a kind of surface assembling tpe electromagnetic sound-producing device, it by last box and following box be fixed together the slim box of the roughly square shape that forms, the audible segment of in this slim box, adorning, the sound transmission aperture offered on one of the longitudinal wall that forming slim box side face and constitute at the anti-leak-stopping sound member that the longitudinal wall that is provided with this sound transmission aperture is installed previously, above-mentioned anti-leak-stopping sound member has and the roughly the same shaped aperture part of sound transmission aperture, it is characterized in that comprising:
The left and right sides of the sound transmission aperture of on above-mentioned slim box, offering, it is described that to go up be provided with on box and at least one side of following box a pair of be zygostyle; Be used for this be zygostyle chimeric and described anti-leak-stopping sound member medial surface outstanding form hitch projection; Hitching what be provided with on the projection at this is to close the hole,
When fixing described last box becomes slim box with following box-like, described be zygostyle chimeric advance described anti-leak-stopping sound member what hitch projection is to close in the hole, and between last box and following box, seize the projection that hitches of described anti-leak-stopping sound member on both sides by the arms,, around sound transmission aperture, fix and prevent leak-stopping sound member when going up box and become slim box with fixing with following box-like.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49193/98 | 1998-03-02 | ||
| JP49193/1998 | 1998-03-02 | ||
| JP04919398A JP4020219B2 (en) | 1998-03-02 | 1998-03-02 | Surface mount electromagnetic sounding body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1231468A CN1231468A (en) | 1999-10-13 |
| CN1187732C true CN1187732C (en) | 2005-02-02 |
Family
ID=12824187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991024702A Expired - Fee Related CN1187732C (en) | 1998-03-02 | 1999-03-02 | Surface assembling tpe electromagnetic sound-producing device |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6150924A (en) |
| JP (1) | JP4020219B2 (en) |
| CN (1) | CN1187732C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0107071D0 (en) * | 2001-03-21 | 2001-05-09 | Nokia Mobile Phones Ltd | An acoustic transducer assembly |
| CN102387454B (en) * | 2010-09-03 | 2013-11-20 | 歌尔声学股份有限公司 | Silicon microphone and packaging structure of product applying same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0645982A (en) * | 1992-07-22 | 1994-02-18 | Sony Corp | Portable radio telephone set |
| JP3560415B2 (en) * | 1996-07-09 | 2004-09-02 | 株式会社シチズン電子 | Surface mount type electromagnetic sounding body |
-
1998
- 1998-03-02 JP JP04919398A patent/JP4020219B2/en not_active Expired - Fee Related
-
1999
- 1999-02-26 US US09/258,389 patent/US6150924A/en not_active Expired - Fee Related
- 1999-03-02 CN CNB991024702A patent/CN1187732C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP4020219B2 (en) | 2007-12-12 |
| US6150924A (en) | 2000-11-21 |
| CN1231468A (en) | 1999-10-13 |
| JPH11249662A (en) | 1999-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7390978B2 (en) | Overmolded electronic assembly and overmoldable interface component | |
| JP4366863B2 (en) | Electronic control unit | |
| US5689878A (en) | Method for protecting electronic circuit components | |
| KR19990044976A (en) | Battery unit and a portable battery-operated device including such a battery unit | |
| EP1429347A2 (en) | Strap-shaped input device | |
| JPH10199612A (en) | Waterproof connector and its manufacture | |
| JP3683643B2 (en) | Solenoid unit | |
| CN112333618A (en) | Bone voiceprint sensor module and electronic equipment | |
| CN1187732C (en) | Surface assembling tpe electromagnetic sound-producing device | |
| EP1699258B1 (en) | Electro-acoustic transducer with holder | |
| US5438160A (en) | Sealed, shielded and filtered header receptacle | |
| JPH10233828A (en) | Microphone holder | |
| JPH071663B2 (en) | Sealed relay assembly and method for assembling the same | |
| JP3909515B2 (en) | Battery pack | |
| JPH05243775A (en) | Electromagnetic shield structure of electronic circuit module and assembly method therefor | |
| JP2004079226A (en) | Connection structure and method for connection of flat electric cable | |
| JP3560415B2 (en) | Surface mount type electromagnetic sounding body | |
| US5982882A (en) | Microphone sub-assemblies using elastomeric housings | |
| CN207947899U (en) | Electronic equipment | |
| JP3104679B2 (en) | Hybrid IC package | |
| CN217088149U (en) | Antistatic microphone | |
| JP3043347U (en) | Piezo acoustic device | |
| JP2862318B2 (en) | Electronic package | |
| JP2549911Y2 (en) | Ultrasonic transducer | |
| CN116939471A (en) | Microphone packaging structure, manufacturing method, audio equipment and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: WD Ref document number: 1022977 Country of ref document: HK |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |